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Finding the Fourth Proportional to 324,840.80, 487,261.20 and 158,952.80

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Solution

The fourth proportional to 324,840.80, 487,261.20 and 158,952.80 is: 238,429.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,840.80 : 487,261.20 = 158,952.80 : x
  2. Step 2: Convert to fraction form
    324,840.80/487,261.20 = 158,952.80/x
  3. Step 3: Cross multiply
    324,840.80x = 487,261.20 × 158,952.80
  4. Step 4: Simplify right side
    324,840.80x = 77,451,532,071.36
  5. Step 5: Solve for x
    x = 77,451,532,071.36/324,840.80
  6. Step 6: Final answer
    x = 238,429.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.